The opening into a larynx is called a glottis.
<span>1 x Ethmoid Bone
1 x Frontal Bone
1 x Occipital Bone
2 x Parietal Bones
1 x Sphenoid Bone
2 x Temporal Bones
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Answer:
pressure changes of alternating contraction and relaxation during the cardiac cycle.
Explanation:
Opening and closing of heart valves are regulated by changes in the blood pressure of various heart chambers during the cardiac cycle. During atrial systole, the higher blood pressure in the atria opens both AV valves and forces the blood to enter the ventricles. The semilunar valves are closed. During ventricular systole, the higher blood pressure in the ventricles opens both semilunar valves to allow the blood to enter the pulmonary trunk and aorta. At this time, both the atrioventricular valves are closed.
Anaphase is the shortest phase of mitosis. In anaphase, the sister chromatids are pulled apart to opposite ends of the cell. In metaphase, chromosomes line up along the metaphase plate.Metaphase takes a short amount of time to complete. Telophase is the next to the shortest phase of mitosis after anaphase.
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